SP331 transceiver equivalent, programmable rs-232/rs-485 transceiver.
ure 15(b) shows the negative side of capcitor C2. There is a free
–running oscillator that controls the four phases of the voltage shifting. A description .
The SP331 is a programmable RS-232 and/or RS-485 transceiver IC. The SP331 contains four drivers and four receivers when selected in RS-232 mode; and two drivers and two receivers when selected in RS-485 mode. The SP331 also contains a dual mode whi.
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